Aluminium Bi-fold Doors

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Quality aluminium Bifold Doors designed & manufactured in the UK


Thanks to the influence of Grand Designs and our desire for more light and space, bifold doors have become a phenomenon. If you have the space to stack the Bifold Doors to the left or right, or on both sides, when they are fully open, then a Bifold Door could be ideal for you. Bifold doors can be fully opened to around 90 per cent of the full opening width, allowing you the flexibility to let in lots of fresh air and move around freely. On days when you don’t wish to open the doors fully, you can choose to have a single traffic door, allowing you easy access between your home and garden all year round.

KAT Aluminium bifold doors are made to bespoke sizes to suit your project and are available in seven colours from stock, including dual colours. Our door handles are designed exclusively by KAT and are made from stainless steel in a choice of six different finishes.

Key features of Aluminium Bi-fold Doors

  • 7 colours to choose from, including dual colours
  • Very slim frames, more glass area
  • Multi-point locking system
  • Special ‘lay-flat’ pop out intermediate handle
  • can be supplied with a ‘floor level’ low threshold
  • also available with a weathered standard threshold or non-weathered room divider
  • designer door handles designed by and exclusive to KAT in six different finishes
  • 3 star diamond rated cylinder with kitemark
  • 25 year marine grade paint guarantee option
  • Up to 6 opening sashes

Chamfered Bead option
Flat Bead option
Colour Options
Single Colours:
9910 Hipca White High Gloss
7016 Anthracite Grey Matt
9005 Black Matt
7035 Light Grey Semi-gloss
9001 Cream Matt

Dual Colours:
9005 Black matt outside / 9910 Hipca White High Gloss inside
7016 Anthracite Grey Matt outside / Hipca White High Gloss inside
Sash options 2, 3, 4, 5, 6 or 7 panels
Inward or outward opening doors
Sliding options to left or right
Black TPE
General Description
Totally bespoke bi-folding doors designed and manufactured by KAT to fit your application. Excellent thermal, acoustic and security performance. Huge range of bi-folding configurations from KAT the UK market leader with a 10 year manufacturers' guarantee.
28mm or 36mm double glazed sealed units as standard
Planitherm Total Plus Low Emissivity, soft coat glass
Clear or Obscure
Argon filled units
Warm Edge Spacer (Black or Grey)
Standard U value of 1.6
Triple glazing can be accommodated up to 44mm
Stainless steel wheels
Stainless steel rollers
Lever/Lever handles on master door
KAT flush line push out 'T' handles on intermediate doors
Shootbolt locking
3 star diamond rated cylinder
Frame width: min. 1.6 metres to max. 10 metres
Frame height: min. 1.6 metres to max. 3.0 metres
Sash Options
Sash width: min. 600mm to max. 1.1 metres
Sash weight: max. 100kg
Softline sash option
Chamfered sash option
Security and Performance
System has been independently tested to meet PAS 24 and
'Secured By Design' (SBD)
Threshold Options
54mm Threshold – thermally broken, fully weathered
34mm Low Threshold – thermally broken, provides good
protection, no weather rating
22mm Room Divider – not thermally broken, no weather rating
54mm threshold tested to 'Severe' weather conditions (BS 6375)



We manufacture KAT bifolds in Cheshire and KAT Schueco bifolds in Sussex.  Aluminium allows for narrow, aesthetically pleasing slim frames and is low maintenance.

Our doors are currently the highest performing doors in the UK in tests against wind, water and air pressure (severe weather tested to BS 6375/1:2009). They come with an extended 10 year warranty whilst our design and engineering tests have shown that they have a life expectancy in excess of 25 years.



Blinds Within Glass


Integral venetian blinds are made to fit neatly between 2 panes of glass, offering a contemporary look for Bifold Doors in a choice of 10 colours; White, Yellow, Hay, Sage, Sky, Cream, Putty, Silver, Dark Silver and Dark Grey. 

Raising and lowering of the blinds is controlled using either a Rotational Wand, Rotational Knob or a Cord system. The blinds carry a 5 year guarantee, are maintenance free, conform to BSEN 13120 Safety Standards and are suitable for 28mm double glazed door sashes up to 1200mm wide.




Material Information


Aluminium is the optimum material for manufacturing windows and doors and that is why it is widely specified by Architects for most serious new build and refurbishment projects.

Aluminium doors require very little maintenance, just a wipe with a damp cloth when needed and a regular check to ensure the track is kept free from grit and small stones to ensure the doors continue to run smoothly. Aluminium is more resistant to the elements than PVCu and is not likely to warp or rot. We offer a 10 year warranty on standard paint in a choice of 7 colours or 25 years warranty on Marine Grade paint.




With our huge range of exclusive doors we also offer you a complete range of accessories from handles, to threshold options, to opening configurations.

Our KAT bifolding door handles are luxury products, made exclusively to a KAT design and crafted from Stainless Steel and guaranteed for 10 years.

Please consider your choice of ancillary hardware carefully because that is what you will eventually notice most when your products are installed. Check out the finishes on our handles because it is attention to detail that helps make this unique product range so exciting.




Safety & Security


Our bifolding doors are designed to discourage intruders, thanks to the master door security locking system and intermediate handles with shootbolts which can also be supplied with key locking. We fit a 3 star diamond rated cylinder to all Aluminium Bifold Doors. The whole system conforms to PAS 24 security standards.

All these elements prevent our bifolds being lifted off their base channel or being jemmied when closed.

Safety & Security

Colour Options


A little time and care with your choice of colour is advised and your selection should be influenced by your style of property, surrounding architecture or your other windows and doors. Just choose from our range of popular colours, let us know your sizes and how you would like the doors to open and we can make your Bifold door in just 2 weeks from the date of order.

You should also carefully consider the colour of handles inside and out.

Single Colours:

  • 9910 Hipca White High Gloss
  • 7016 Anthracite Grey Matt
  • 9005 Black Matt
  • 7035 Light Grey Semi-gloss
  • 9001 Cream Matt

Dual Colours:

  • 9005 Black matt outside / 9910 Hipca White High Gloss inside
  • 7016 Anthracite Grey Matt outside / Hipca White High Gloss inside

Call into our Showrooms in either Newhaven or Macclesfield and we will can show you a colour chart demonstrating each of the RAL colours available.